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Transition metal ion-substituted polyoxometalates entrapped into polypyrrole as electrochemical sensor for hydrogen peroxide

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dc.contributor.author Anwar, Nargis
dc.contributor.author Vagin, Mikhail
dc.contributor.author Laffir, Fathima R.
dc.contributor.author Armstrong, Gordon
dc.contributor.author Dickinson, Calum
dc.contributor.author McCormac, Timothy
dc.date.accessioned 2013-09-23T14:03:23Z
dc.date.available 2013-09-23T14:03:23Z
dc.date.issued 2012
dc.identifier.uri http://hdl.handle.net/10344/3383
dc.description peer-reviewed en_US
dc.description.abstract A conducting polymer was used for the immobilization of various transition metal ion-substituted Dawson-type polyoxometalates (POMs) onto glassy carbon electrodes. Voltammetric responses of films of different thicknesses were stable within the pH domain 2-7 and reveal redox processes associated with 10 the conducting polymer, the entrapped POMs and incorporated metal ions. The resulting POM doped polypyrrole films were found to be extremely stable towards redox switching between the various redox states associated with the incorporated POM. An amperometric sensor for hydrogen peroxide detection based upon the POM doped polymer films was investigated. The detection limits were 0.3 and 0.6 uM, for the Cu2+- and Fe3+-substituted POM-doped polypyrrole films respectively, with a linear region from 15 0.1 up to 2mM H2O2. Surface characterization of the polymer films was carried out using atomic force microscopy, x-ray photoelectron spectroscopy and scanning electron microscopy. en_US
dc.language.iso eng en_US
dc.publisher Royal Society of Chemistry en_US
dc.relation.uri http://dx.doi.org/10.1039/C1AN15665A
dc.subject peroxide detection en_US
dc.subject polymer film en_US
dc.title Transition metal ion-substituted polyoxometalates entrapped into polypyrrole as electrochemical sensor for hydrogen peroxide en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.contributor.sponsor INSPIRE en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US
dc.internal.rssid 1148299


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